Device for steering agricultural machines.



No. s94,o|o. Patented m. 25, 1902.

c. r: anuummm; V DEVICE FDR STEERING AGRICULTURAL MACHINES.

- (Application filed Apr. 12. 1901.)

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. DEVICE FOR QTEERING AGRICULTURAL MACHINES. (Application filed. A r.12. 1901.

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- v A In'vezzZo-r a @006 XM UNITED STATES PATENT OFFICE.

CARL FERDINAND GROHMANN, OF GUSTROi/V, GERMANY.

DEVICE FOR STEERING AGRICULTURAL MACHINES.

SPECIFICATION forming part of Letters Patent No. 694,010, dated February25, 1902.

Application filed April 12, 1901.

To all whom it may concern:

Be it known that I, CARL FERDINAND GROH- MANN, a subject of the GrandDuke of Mecklenburg-Schwerin, residing at Giistrow, in the Grand Duchyof Mecklenburg-Schwerin, in the German Empire, have invented certain newand useful Improvements in Devices for Steering Agricultural Machines,of which the following is a specification.

My present invention relates to a device for steeringagriculturalmachines havingaframe consisting of side beams or cheeks.

The characteristic feature of my invention isthat the steering iseffected by laterally moving the cheeks of the front part of the framerelative to the pole-bolt, connected rigidly with the front wheels bymeans of a steering-lever.

In the accompanying drawings, representing one form of my invention,Figure 1 represents a side view of the device applied to the frontwheels of the machine, and Fig. 2 is a plan.

'To the axle of the front Wheel is secured the pole-bolt a, which passesthrough a beam 6, situated on the axle, and which is provided on the topwith a strengthening-plate c. On

I the plate 0 there is a second plate 0', which is connected by theframe (1 to the side beams or cheeks e of the front part of the machine.On the beam e there is a plate f, which connects the said beams. Throughthis platef passes the pole-bolt a, on the top end of which thedrawing-pole g is secured by a nut, a washer being interposed, as shownin Fig. 1. The plates 0 and f are each provided with an arc-shaped sloth, in which the pole-bolt a is situated. To a transverse plate 2',connecting the two side beams or cheeks e, is secured adownwardly-projecting bearing in which turns the shaft 70. To this shaftkis secured at the top a steering-lever Z, which is directed toward theback part of the machine and is adapted to engage in grooves in a railm, conmeeting the side beams or cheeks e. To the shaft 7;; two claws nare also secured, the ends of which are forked and inclose the pole-bolta. If now the steering-lever Zis moved about Serial No. 55,477- (Nomodel-l machine is movingina straight line, the steering-lever Z can besecured in one of the grooves in the rail m.

The above-described construction is of course only one form of carryingout my invention, which can be adapted in any suitable manner toagricultural machines of all kinds.

hat I claim is- 1. In an agricultural machine asteering devicecomprising a pole-bolt a secured to the front axle of the machine, avertical shaft is secpred to the upper part of the frame of the machine,claws n secured at one end to the vertical shaft and inclosing thepole-bolt a at the other end, a steering-leverl secured to the verticalshaft is, substantially as set forth. 7.

2. In an agricultural machine a steering device comprising incombination a pole-bolt a secured to the front axle of the machine, abeam 19 secured on said axle, a plate 0 possessing a slot h and securedto the frame of the machine, a plate f connecting the two side beams eand possessing a slot h, a vertical shaft is secured to the-upper partof the frame of the machine,claws n secured at one end to the verticalshaft 7; and inclosing at the other end the pole-bolt a, asteering-lever Z secured to the vertical shaft 70, substantially as setforth and for the purpose specified.

3. In an agricultural machineasteering device comprising in combinationa pole-bolt a secured to the front axle of the machine, a beam 1)secured on said axle, a plate 0 attached to the top of said beam, aplate 0 resting on the said plate 0 and possessing a slot h and securedto the frame of the machine a piatefconnecting" the two side beams e anddesired position, substantially as set forth IO possessing a slot 7L aVertical shaft 70 turning and for the purpose specified.

in bearingsj secured to the frame of the ma In testimony whereof I havehereunto set chine, two clays '11 secured at one end to the my hand inthe presence of'two Witnesses. vertical shaft t and snrronndin at theother end the pole-Delta, a steering-le ver Z secured CARL FERDINMDGROHMANN' to the vertical shaft 75, a rail on between the .VVitnesses:two side beams e and provided with notches GUSTAV WEBER,

adapted to hold the steering-lever Zin any 1 PAUL FRIEDR. DL' HRKOOP.

